The Marin County Open Space District Summer Schedule is available. The Naturalist led hikes are led by skilled naturalists and many of participants are very knowledgeable about natural history as well. I have wondered over many of the open lands of Marin over the years and found the Open Space programs to be a great way to explore Marin County.
Click to see schedule: http://www.co.marin.ca.us/depts/PK/Main/MCOSD/pdf/Newsletter_MC-POS-Summer-2010.pdf
Natural History Wanderings 
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